1 Courtenay Close, Old St Mellons, Cardiff, CF3 5UL

1 Courtenay Close is a four-bedroom detached house in Old St. Mellons, Cardiff, Cardiff (CF3 5UL). It has a recorded floor area of 158 m² (around 1701 sq ft), construction records dating it to 1991-1995 and council tax band H. The latest certificate (April 2012) shows a D (score 63), on the cusp of jumping into the C band. Earlier certificates rated it C (March 2010); the latest reading is one band lower. Between certificates, roof efficiency dropped from Good to Average and hot-water efficiency dropped from Good to Average. The recommended improvements would push it to C (score 80). The latest certificate is from April 2012, so improvements made since then won't be reflected.

Last sold in March 2017, so it's been off the market for around 9 years. Across the public record there are 4 sales, relatively high churn for a single property. One planning record on file: tree works approved in 2024. Past consents include tree works, meaningful when judging how the property has evolved. Across 1999–2017, sale prices on this property compounded at 5.5% per year. Today's modelled estimate of £596,000 is 37% above the 2017 sale price. On a £-per-square-foot basis, the last sale (£256/sq ft) was about 63.8% above the typical sold price in the postcode.